What does west nile do to survive outside the body?

West Nile virus primarily survives outside the body by residing in various environmental reservoirs, such as birds, which are the primary hosts. It can persist in the environment through infected mosquitoes that feed on these birds and can also survive in water sources where mosquitoes breed. The virus can remain infectious in the tissues of these hosts and vectors, allowing it to maintain its life cycle until it finds a new host to infect.